Raises the UploadProgressChanged event.
Assembly: System (in System.dll)
'Declaration Protected Overridable Sub OnUploadProgressChanged ( _ e As UploadProgressChangedEventArgs _ ) 'Usage Dim e As UploadProgressChangedEventArgs Me.OnUploadProgressChanged(e)
Classes that inherit from this class can override this method to perform additional tasks when the UploadProgressChanged event occurs.
Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.
The method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.Notes to Inheritors:
When overriding in a derived class, be sure to call the base class’s method so that registered delegates receive the event.
The following code example shows an implementation of this method that can be customized by a class derived from WebClient.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.